class_docstr: context class to allow setting the current context.
  Example usage with layer:
      regularizers = {'reg1': reg1, 'reg2': reg2}
      with UseRegularizer(regularizers):
          reg = RegularizerContext.current().get_regularizer('reg1')
          layer(reg=reg)
code: def _context_class(self):
      return RegularizerContext
  
file_path: pytorch/caffe2/python/regularizer_context.py
imports: from caffe2.python import context
  from caffe2.python.modifier_context import ModifierContext, UseModifierBase
label_desc: Use image node_id 1 for calling the UseRegularizer obj's underlying member method code with example usage: obj._context_class() and returns: RegularizerContext